Simulation-based lateral transshipment policy optimization for s, S inventory control problem in a single-echelon supply chain network

Banu Yetkin Ekren, Bartu Arslan

Abstract


Since it affects the performance of whole supply chain significantly, definition of correct inventory control policy in a supply chain is critical. Recent technological development enabled real time visibility of a supply network by horizontal integration of each node in a supply network. By this opportunity, inventory sharing among stocking locations is also possible in the effort of cost minimization in supply chain management.  Hence, lateral transshipment gained popularity and studies seeking the best lateral-transshipment policy is still under research. In this study, we aim to compare different lateral-transshipment policies for an s, S inventory control problem for a single-echelon supply chain network system. In this work, we consider a supply network with three stocking locations which may perform lateral transshipment among them when backorder takes place. We develop the simulation models of the systems in ARENA 14.5 commercial software and compare the performance of the policies by minimizing the total cost under a pre-defined fill rate constraint by using an optimization tool, OptQuest, integrated in that software. The results show that lateral transshipment works well compared to the scenario when there is no lateral transshipment policy in the network.


Keywords


inventory; s, S inventory; simulation; lateral-transshipment; 90B05, 90B15, 90B50

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References


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DOI: http://dx.doi.org/10.11121/ijocta.01.2020.00789

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